Knee pillow



FIG. 1 is a rear, top, and right perspective view of a knee pillowshowing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front, bottom, and left perspective view thereof.

CLAIM The ornamental design for a knee pillow, as shown and described.